Preparation and photocatalytic activity of N and La co-doped nano TiO<sub>2</sub>/tourmaline composites

LIU Xinwei; CHEN Yong; LI Hui; CHEN Changbing; ZHANG Wentong

doi:10.13801/j.cnki.fhclxb.20151109.001

Volume 33 Issue 4

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LIU Xinwei, CHEN Yong, LI Hui, et al. Preparation and photocatalytic activity of N and La co-doped nano TiO2/tourmaline composites[J]. Acta Materiae Compositae Sinica, 2016, 33(4): 875-883. doi: 10.13801/j.cnki.fhclxb.20151109.001

Citation:

LIU Xinwei, CHEN Yong, LI Hui, et al. Preparation and photocatalytic activity of N and La co-doped nano TiO₂/tourmaline composites[J]. Acta Materiae Compositae Sinica, 2016, 33(4): 875-883. doi: 10.13801/j.cnki.fhclxb.20151109.001

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Preparation and photocatalytic activity of N and La co-doped nano TiO₂/tourmaline composites

doi: 10.13801/j.cnki.fhclxb.20151109.001

1.
Department of National Defense Architecture Planning & Environmental Engineering, Logistic Engineering University, Chongqing 401311, China;
2.
College of Chemistry, Beijing Normal University, Beijing 100875, China

Received Date: 2015-07-20
Rev Recd Date: 2015-10-31
Publish Date: 2016-04-15

Abstract

Abstract

Using Ti(OC₄H₉)₄ as raw material, CO(NH₂)₂ as N source, La(NO₃)₃·6H₂O as La source, the N and La co-doped nano TiO₂/tourmaline composites were synthesized via ultrasonic assisted sol-gel method. The structure and performance of composites were characterized by XRD, UV-Vis, SEM-EDS and XPS. The photocatalytic activity and recycling performance of N and La co-doped nano TiO₂/tourmaline composites were evaluated with 2, 4, 6-trinitrotoluene as target pollutant. The results show that TiO₂ grain sizes refine more and light abstraction width expands to visible region by the synergetic effect of N and La co-doped, and tourmaline loaded. N and La co-doped nano TiO₂/tourmaline composites have good photocatalytic activity and recycling performance.The removal effect of 2, 4, 6-trinitrotoluene is good under the condition of simulating visible light irradiation.
- co-doped,
- TiO₂,
- tourmaline,
- composites,
- photocatalysis
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